CN202601399U - Multi-voltage-level electromagnetic voltage transformer - Google Patents
Multi-voltage-level electromagnetic voltage transformer Download PDFInfo
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- CN202601399U CN202601399U CN 201220249579 CN201220249579U CN202601399U CN 202601399 U CN202601399 U CN 202601399U CN 201220249579 CN201220249579 CN 201220249579 CN 201220249579 U CN201220249579 U CN 201220249579U CN 202601399 U CN202601399 U CN 202601399U
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Abstract
The utility model relates to a multi-voltage-level electromagnetic voltage transformer, which comprises a primary winding N1, a secondary winding N2 and an iron core, wherein the secondary winding N2 is provided with a starting outgoing wire a and a plurality of taps X1-Xn; the starting outgoing wire a is a public lead output from the secondary winding; and the starting outgoing wire a and any one of the plurality of taps X1-Xn are output together. The secondary winding is used together with any one of the plurality of taps X1-Xn, so that selection of multiple voltage level outputs of a medium-voltage power system can be realized; and the multi-voltage-level electromagnetic voltage transformer has the advantages of compact structure, low loss, high safety performance, convenience in using and wide application range.
Description
Technical field
The utility model relates to electromagnetic technology field, is the electromagnetic potential transformer of a kind of intermediate voltage electric power system with multi-voltage grade output specifically.
Background technology
Mostly the instrument transformer that electric power system is at present used is single no-load voltage ratio; Such as 10kV grade power grids commonly used; General 10/0.1kV or the 10/0.1/0.1kV etc. of adopting can only provide an electric pressure, if this transformer station (chamber) dilatation electric pressure become 20kV so this instrument transformer just can not use; Can only be replaced with supporting with it voltage transformer again, cause a large amount of wastes of great amount of manpower and material resources.Because industry, agriculture developing rapidly and the rolling up of residential electricity consumption load; The real example of low-voltage grade dilatation is a lot of like this; The trend of this waste is also increasing gradually; Conventional voltage transformer can not address this problem, and is starved of a kind of safe and reliable multi-voltage grade voltage transformer.
Summary of the invention
In order to solve the deficiency that voltage transformer in the prior art can't adapt to the dilatation demand; The utility model provides a kind of compact conformation; Easy to use, multi-voltage grade output can be provided, can satisfy the electromagnetic potential transformer of the multi-voltage grade of voltage transformer dilatation demand.
The technical scheme that the utility model adopts is: a kind of electromagnetic potential transformer of multi-voltage grade; Comprise winding N1, secondary winding N2 and iron core one time; Its technical characterstic is that said secondary winding N2 is provided with initial outlet a and a plurality of tap X1 ~ Xn; Initial outlet a is the common lead of secondary winding output, and arbitrary tap of initial outlet a and many tap X1 ~ Xn is exported jointly.
Said secondary winding N2 is one or more groups.
Compared with prior art, the utility model has the advantages that:
1, secondary winding is provided with initial outlet a and Duo Gen tap X1 ~ Xn, and initial outlet a is a secondary winding output common lead, and arbitrary tap combination of initial outlet a and many tap X1 ~ Xn realizes the polytropic ratio voltage output of intermediate voltage electric power system voltage transformer; One time winding N1 is one group, and secondary winding N2 is one or more groups, organizes secondary winding N2 more and can realize the identical or different electric pressure output of the many groups of voltage transformer, improves the scope of application;
2, the iron core of voltage transformer adopts low-loss silicon steel sheet to roll to form, and winding and many taps secondary winding adopt on concentric column suit and the volume stem unshakable in one's determination, form an integral body by poured with epoxy resin again.Main insulation is epoxy resin, and anti overvoltage and resonance ability can satisfy the highest inside and outside insulating requirements of electric pressure by force, guarantees the system safety operate as normal, and overall volume is little, can effectively reduce its leakage reactance, improves precision and capacity.
The secondary winding of the utility model electromagnetic potential transformer adopts the fixing public arbitrary tap use that occurs cooperating a plurality of tap X1 ~ Xn in fact, can realize the selection of the multi-voltage grade output of intermediate voltage electric power system, its compact conformation; Low-loss; Security performance is high, and is easy to use, applied widely.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the utility model embodiment two structural representations.
Among the figure: a winding N1, secondary winding N2, initial outlet a, tap X1 ~ Xn.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment illustrated in fig. 1 one; A kind of electromagnetic potential transformer of multi-voltage grade comprises winding N1, secondary winding N2 and iron core one time; Secondary winding N2 is provided with initial outlet a and a plurality of tap X1 ~ Xn; Initial outlet a is the common lead of secondary winding output, and arbitrary tap of initial outlet a and many tap X1 ~ Xn is exported jointly.Design the number of turn of a winding according to this instrument transformer highest voltage level, according to the principle of N1/N2=U1/U2, confirm the secondary winding number of turn of highest voltage level and the number of turn of other electric pressures, it is a and x1 that the highest voltage level secondary is labeled as.Other electric pressure is x2, x3 and xn according to order from high to low.
For example: voltage ratio is 35-20-10/0.1kV, and when system voltage was the 10kV electric pressure, external connection was initial outlet a and tap x3; When system voltage is the 20kV electric pressure, external connection is initial outlet a and tap x2; When system voltage is the 35kV electric pressure, external connection is initial outlet a and tap x1; By that analogy, the high more tap sequence number of electric pressure is more little; The secondary winding number of turn between wherein a plurality of tap X1-Xn is corresponding with the system voltage grade.
Embodiment illustrated in fig. 2 two; A kind of electromagnetic potential transformer of multi-voltage grade comprises winding N1, an iron core and organizes secondary winding N2 more; Every group of secondary winding N2 is provided with initial outlet a and a plurality of tap X1 ~ Xn; Initial outlet a is the common lead of secondary winding output, and arbitrary tap of initial outlet a and many tap X1 ~ Xn is exported jointly; The initial outlet of the external output of each secondary winding is different with tap, can realize the output of the identical or different electric pressure of the many groups of many group secondary winding.
For example: voltage ratio is selected 12-10-6/0.1/0.1kV, and when system voltage is the 6kV electric pressure, external connection is initial outlet a1, x31; A2, x32 (being respectively 0.1kV); When system voltage is the 10kV electric pressure, external connection is initial outlet a1, x21; A2, x22 (being respectively 0.1kV); When system voltage is the 12kV electric pressure, external connection is initial outlet a1, x31; A2, x32 (being respectively 0.1kV); By that analogy, the high more tap sequence number of electric pressure is more little.
Claims (2)
1. the electromagnetic potential transformer of a multi-voltage grade; Comprise winding N1, secondary winding N2 and iron core one time; It is characterized in that: said secondary winding N2 is provided with initial outlet a and a plurality of tap X1 ~ Xn; Initial outlet a is the common lead of secondary winding output, and arbitrary tap of initial outlet a and many tap X1 ~ Xn is exported jointly.
2. the electromagnetic potential transformer of multi-voltage grade according to claim 1 is characterized in that: said secondary winding N2 is one or more groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249579 CN202601399U (en) | 2012-05-30 | 2012-05-30 | Multi-voltage-level electromagnetic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249579 CN202601399U (en) | 2012-05-30 | 2012-05-30 | Multi-voltage-level electromagnetic voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601399U true CN202601399U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249579 Expired - Lifetime CN202601399U (en) | 2012-05-30 | 2012-05-30 | Multi-voltage-level electromagnetic voltage transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202601399U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000360A (en) * | 2012-12-17 | 2013-03-27 | 杭州大互互感器有限公司 | 10kV-20kV voltage transformer and voltage changing method |
| CN103227021A (en) * | 2013-05-21 | 2013-07-31 | 浙江腾腾电气有限公司 | Segmented variable cross-section winding |
| CN103871720A (en) * | 2012-12-13 | 2014-06-18 | 北京普源精电科技有限公司 | Measuring device allowing input voltage adjustment |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN105788836A (en) * | 2016-05-20 | 2016-07-20 | 李建新 | Transformer for low-voltage power transmission line |
| CN108987069A (en) * | 2018-07-30 | 2018-12-11 | 特变电工康嘉(沈阳)互感器有限责任公司 | A kind of electromagnetic potential transformer |
-
2012
- 2012-05-30 CN CN 201220249579 patent/CN202601399U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871720A (en) * | 2012-12-13 | 2014-06-18 | 北京普源精电科技有限公司 | Measuring device allowing input voltage adjustment |
| CN103000360A (en) * | 2012-12-17 | 2013-03-27 | 杭州大互互感器有限公司 | 10kV-20kV voltage transformer and voltage changing method |
| CN103227021A (en) * | 2013-05-21 | 2013-07-31 | 浙江腾腾电气有限公司 | Segmented variable cross-section winding |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN105788836A (en) * | 2016-05-20 | 2016-07-20 | 李建新 | Transformer for low-voltage power transmission line |
| CN108987069A (en) * | 2018-07-30 | 2018-12-11 | 特变电工康嘉(沈阳)互感器有限责任公司 | A kind of electromagnetic potential transformer |
| CN108987069B (en) * | 2018-07-30 | 2020-12-04 | 特变电工康嘉(沈阳)互感器有限责任公司 | Electromagnetic voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |